5 hp (3.7/4 kW) variable frequency drive, three phase 230V, 400V, 480V for selection, manufacturer direct sale.
Specification:
Basics | Model | GK3000-4T0037G/ GK3000-2T0037G |
Capacity | 5 hp (3.7 kW) |
Shipping weight | 3 kg |
Dimension | 236*130*176 mm |
I/O Feature | Rated current | 9.6 A |
Input voltage | 3 phase 230V /400V /480V AC ±15% (Optional) |
Input frequency | 50Hz/ 60Hz |
Output voltage | 3 phase AC 0~input voltage |
Output frequency | 0.00~400.00Hz |
Over load capacity | 150% of rated current for 1 minute, 180% of rated current for 3 seconds |
Control Feature | Control mode | V/F control; Sensorless vector control; |
Communication | RS485 |
Speed regulation | 1:100 |
Start torque | 150% of rating torque at 1 Hz |
Speed control accuracy | ≤±0.5% of rating synchronous speed |
Frequency precision | Digital setting: max frequency x± 0.01%; Analog setting: max frequency x± 0.2% |
Frequency resolution | Analog setting: 0.1% of max frequency; Digital setting: 0.01Hz |
Torque boost | Automatic torque boost, manual torque boost 0.1%~30.0% |
Interior PID controller | Be convenient to make closed-loop system |
Automatic energy save running | Optimize V/F curve automatically based on the load to realize power save running |
Automatic voltage regulation (AVR) | Can keep constant output voltage when power source voltage varies. |
Automatic current limiting | Limit running current automatically to avoid frequent over-current which will cause trip |
Environment | Enclosure rating | IP 20 |
Temperature | –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5% |
Humidity | 5%-95%, without condensation |
Altitude | ≤1000m; VFD will be derated if above 1000m |
Impingement and oscillation | Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g) |
Store environment | –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight |
Tips: Variable Frequency Drive Overvoltage
Overvoltage alarm is generally present at downtime, the main reason is that the deceleration time is too short or the braking resistor and the braking unit are problematic. For example, a 5hp VFD displays "OU" when shutdown. Before repairing the VFD, should make sure the reason for "OU" alarm is what. Here is because during the VFD deceleration, the speed of the motor rotor winding cutting the rotation magnetic field becomes fast, the rotor electromotive force and current increases, so that the motor is in power generation state. The feedback energy flows to DC part through the diode, which connects in parallel with high-power switch tube in inverting part, and finally causes by DC bus voltage increase. So, should focus on checking the brake circuit. After measuring the discharge resistance, find there's no problem. In the measurement of the brake tube find it breakdown. Replace it and power on, even fast parking have no problem.
Favorable price 5 hp (3.7 / 4 kW) VFD, three phase 230V, 400V, 480V, high performance vector variable frequency drive, IP20 enclosure, RS485 enabled, brand new direct sale by manufacturer.